/*
 * Copyright (C) 2020 Graylog, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the Server Side Public License, version 1,
 * as published by MongoDB, Inc.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * Server Side Public License for more details.
 *
 * You should have received a copy of the Server Side Public License
 * along with this program. If not, see
 * <http://www.mongodb.com/licensing/server-side-public-license>.
 */
package org.graylog.testing;

import org.junit.jupiter.api.extension.AfterAllCallback;
import org.junit.jupiter.api.extension.BeforeAllCallback;
import org.junit.jupiter.api.extension.ExtensionContext;

import java.util.Properties;

public class RestoreSystemProperties implements BeforeAllCallback, AfterAllCallback {

    private static final ExtensionContext.Namespace NAMESPACE = ExtensionContext.Namespace.create(RestoreSystemProperties.class);
    private static final String KEY = "properties";

    @Override
    public void afterAll(ExtensionContext context) throws Exception {
        final Properties previousProps = context.getStore(NAMESPACE).get(KEY, Properties.class);
        System.setProperties(previousProps);
    }

    @Override
    public void beforeAll(ExtensionContext context) throws Exception {
        final Properties cloned = (Properties) System.getProperties().clone();
        context.getStore(NAMESPACE).put(KEY, cloned);
    }
}
